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Modified graphene reinforced anti-freezing concrete

A graphene, reinforced technology, applied in the field of building materials, can solve problems such as general frost resistance of concrete, and achieve the effect of improving mechanical properties, frost resistance and other durability, good crack resistance and seepage resistance, and crack inhibition.

Inactive Publication Date: 2018-12-21
含山县领创新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the frost resistance of concrete is average and cannot meet the needs of the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A modified graphene-enhanced antifreeze concrete, the modified graphene-enhanced antifreeze concrete contains 8% by mass of modified graphene composite intercalation oil shale.

[0019] Further, the preparation method of the modified graphene composite intercalation oil shale comprises the following steps:

[0020] (1) Modified graphene: uniformly disperse graphene in deionized water to prepare a graphene dispersion, add 0.1% of its mass of sodium hypochlorite to the graphene dispersion, heat to 65°C, and stir at 120r / min 40min, then add its quality 0.05% potassium trimethylsiliconate to the graphene dispersion, stir with 500r / min rotating speed for 2 hours, let it stand for aging for 1 hour, then carry out suction filtration, wash, and dry to constant weight , to obtain modified graphene;

[0021] (2) Modified graphene composite intercalation oil shale: crush the oil shale to a 300-mesh sieve to obtain oil shale powder, disperse the oil shale powder evenly in an organ...

Embodiment 2

[0030] A modified graphene-enhanced anti-freeze concrete, the modified graphene-enhanced anti-freeze concrete contains 12% by mass of modified graphene composite intercalation oil shale.

[0031] Further, the preparation method of the modified graphene composite intercalation oil shale comprises the following steps:

[0032] (1) Modified graphene: uniformly disperse graphene in deionized water to prepare a graphene dispersion, add 0.1% of its mass of sodium hypochlorite to the graphene dispersion, heat to 65°C, and stir at 120r / min 40min, then add its quality 0.07% potassium trimethylsiliconate to the graphene dispersion, stir with 500r / min rotating speed for 2 hours, let it stand for aging for 1 hour, then carry out suction filtration, wash, and dry to constant weight , to obtain modified graphene;

[0033] (2) Modified graphene composite intercalation oil shale: crush the oil shale to a 300-mesh sieve to obtain oil shale powder, disperse the oil shale powder evenly in an or...

Embodiment 3

[0042] A modified graphene-enhanced anti-freeze concrete, the modified graphene-enhanced anti-freeze concrete contains 10% by mass of modified graphene composite intercalation oil shale.

[0043] Further, the preparation method of the modified graphene composite intercalation oil shale comprises the following steps:

[0044] (1) Modified graphene: uniformly disperse graphene in deionized water to prepare a graphene dispersion, add 0.1% of its mass of sodium hypochlorite to the graphene dispersion, heat to 65°C, and stir at 120r / min 40min, then add its quality 0.06% potassium trimethylsiliconate to the graphene dispersion, stir with 500r / min rotating speed for 2 hours, let it stand for aging for 1 hour, then carry out suction filtration, wash, and dry to constant weight , to obtain modified graphene;

[0045] (2) Modified graphene composite intercalation oil shale: crush the oil shale to a 300-mesh sieve to obtain oil shale powder, disperse the oil shale powder evenly in an or...

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Abstract

The invention discloses modified graphene reinforced anti-freezing concrete and relates to the technical field of building materials. The modified graphene reinforced anti-freezing concrete comprisesmodified graphene composite intercalation oil shale which accounts for 8-12% by mass of the concrete. The concrete disclosed by the invention has an excellent anti-freezing property.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a modified graphene-enhanced frost-resistant concrete. Background technique [0002] In the cold northern regions, the temperature in winter is very low, often reaching minus twenty degrees Celsius, or even minus forty or fifty degrees Celsius. In such places, higher requirements are put forward for the antifreeze performance of construction projects, especially for roads and bridges. On the one hand, the concrete needs to withstand ultra-low temperature for a long time, and on the other hand, it must withstand the test of repeated freezing and thawing. In order to meet this requirement, the industry has proposed the concept and requirements of frost-resistant concrete. Frost-resistant concrete means that the structural design requires concrete to have the durability of long-term resistance to freeze-thaw cycles, that is, to meet the frost-resistant level s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/12C04B14/02C04B111/20
CPCC04B14/024C04B18/125C04B28/04C04B2111/20C04B18/08C04B14/06C04B18/12Y02W30/91
Inventor 郭平
Owner 含山县领创新材料科技有限公司